Brick-machine



(No Model.) 2 Sheets-Sheet 1.

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(No Model.) 2 Sheets-Sheet 2. J. D. PAGE.

BRICK MACHINE. No. 520,023. Patented May 15, 1894.

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UNITED STATES PATENT OFFICE.

JEFFERSON DAVIS PAGE, OF SHREVEPORT, LOUISIANA.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 520,023, dated May 15, 1894.

Application filed February 24, 1B9

To aZZ whom it may concern:

Be it known that I, JEFFERSON DAVIS PACE, a cltlzen of the United States, residing at the parish of Caddo and State of Louisiana, have invented a new and useful Brick-Machine, of which the following is a specification.

My invention relates to that class of brickmachlnes embodying a vertical stationary pug-mill or hopper, a rotatable stirrer and feed-shaft, and a mechanism for moving under the discharge opening of said hopper or mill a series of brick-molds, the same being filled with clay during their passage thereunder.

The objects of my invention are to provide a machine of this class adapted to be operated either by mechanical or horse-power; to

be of cheap and simple construction, and to nclude therein means for automatically feeding the molds successively under the discharge opening of the mill or hopper, smooth- .ing the clay therein, and discharging said mold thus filled at one end of the machine, said mechanism to be operated through suitable connections operated by the mechanism employed for operating the mill.

Other objects and advantages of the invention will appear in the following description, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings:-Figure 1 is a perspective view of a brick-machine con- 1 view of the same.

structed in accordance with my invention. Fig. 2 1s a vertical longitudinal sectional Fig. 3 is a detail in perspective of the base-plate. Fig. 4 is a similar view of the plunger. Fig. 5 is a similar view of the base, the plunger, the base-plate, and mill being removed.

Like numerals of reference indicate like parts in all the figures of the drawings.

In practicing my invention, 1 provide a suitable base, which in this instance comprises a pair of vertical side-sills 1, which are connected near their rear ends by a cross-sill 2, having its upper end recessed and provided with an anti-friction roller 3, horizontally disposed. One of the sills 1 is provided at or about its middle with an opening 4:, the same being adapted to receive the empty molds which are in a manner hereinafter described 3. Serialllo. 463,567. (No model.)

fed under and to the discharge-opening in the hopper. To the inner sides of the sills 1, there are secured opposite horizontally-disposed cleats or rests 5, and the same are provided with a series of verticallydisposed adjusting screws 6, which extend upwardly from the cleats or rests and support the moldreceiving table 7. The mold-receiving table 7 is provided upon its under side with crosscleats 8, which rest directly upon the adjusting-screws, and the upper side of said table is provided with a series of longitudinallydisposed anti-friction bars 9, overwhich the molds may readily slide.

Surmounting the upper edges of the sillsl is the base-plate 10, the same being bolted to position, for which purpose it is provided at its opposite edges with perforated securing- Iianges. At its center the plate has formed thereon an annular raised collar or wall 11, the same being provided at intervals with bolt-holes, and within said collar or wall the base-plate is provided with a rectangular discharge-opening 12, whose upper edges are inclined or beveled and whose front edge has secured thereunder a knife 13, whose beveled edge is uppermost and forms a continuation of the edge of the opening. In front of the knife there is secured to the underside of the base-plate a spring-plate 14: to strike the molds, the front free edge of such springplate being coincident with that of the baseplate and borne upon by means of an adj usting-screw 15 which passes through the perforation 16 formed in the base-plate and in which said screw is threaded. By means of this screw it will be seen that the springplate may be adj usted,that is more or less depressed into the path of the discharge-passage of the machine. The front end of the base-plate is projected to the corresponding ends of the sills, that is to a point slightly bethe upper ends of the hopper at diametri ICO cally-opposite sides, and said yoke is provided at its center with a vertical bearing 22, and has an arm 23, formed at one side of one of its branches, said arm being bifurcated in the manner shown.

Located in the bearing of'the yoke is a vertical rotatable shaft 25, the same extending down to a point opposite the the base-plate, and at its upper end extending from above the yoke. The shaft at a point below the yoke is provided with a se rles of oppositely-inclined radially-disposed beveled knives 26, the same being arranged spirally upon the shaft and combining to form a series of stirrers and also afeed-auger,which constantly feeds the clay, as the shaft is revolved, toward the lower end of the mill. The lower end of the shaft is provided with an auger-like feeding-blade 27 which forces the clay through the opening 12 in the base-plate and presses the said clayinto the molds that are arranged thereunder, in

opening 12 in 'inafter described.

The shaft may be operated by any suitable motor; in the present instance I have provided the same with a sweep-arm 28, whereby the same may be operated through horse power, said arm being secured to the upper end of the shaft through the medium of a socket 29.

Fixed upon the shaft between the yoke and socket is a quadrant-shaped cam 30, to-push lever 32 out at top and in at bottom to shove mold out, the same being designed to revolve with the shaft. Pivoted between the bifurcations-of the arm 23, as shown at 31, is a lever '32,'whose lower end extends below the base-plate and through the slot 17 therein at which point it is provided with a slot 33; and whose upper end is provided upon its inner edge with a pair of vertically opposite bearloosely journaled a ifllOlZlOIl-I'OllGI' 35. An eye 36, 1s formed on the outer edge of the lever 32, and a rope,

chain or cord 37, is connected to the eye, de-. pends rearwardly over the grooved roller 18,

and down from the rear end of the machine, where it is secured to a retracting weight 38, the same being designed to normally retract or draw outward the lower end of the arm 32 and consequently press the upper end inward against the cam of the pug-mill shaft.

Mounted for reciprocation over the table and under the base-plate, is a Y-shaped plunger 39, the same having a longitudinal slot 40, provided with a transverse-pin 41, upon which an anti-friction roller 42, is mounted, said pin and roller passing through the slot in the lower end of the lever 32, whereby said lever and plunger are looselyconnected. The front end or head of the plunger is of a Width agreeing with the discharge-opening in the base-plate, and is provided upon its under side with guide-lugs 39, which take in grooves or-between the ribs 9 of the table;

At the front end of the machine the sills 1 are recessed as shown at 43, so that they are a manner hereon a level with the table, and rising from the opposite sides of the sills coincident with the recess is a pair of bumping posts or knookplates 44 to loosen mud in molds.

This being the construction, the operatlon of the invention is as follows: The clay is fed in the upper end of the pug-mill in the usual manner and the machine is started, whereby, as will be obvious, the clay is stirred or worked and fed positively toward the lower end of the cylinder or mill and forced down through the opening12. An attendant standing at the side of the machine feeds the empty molds successively through the opening 4 and into the path of the plunger, which is normally retracted by the weight connected with the lever 32. By the time that the mold is fed lnto the machine the cam begins to act upon the upper end of the lever, pressing said upper end outward and consequently the lower end lnward, thus forcing the plunger forward and with it the empty mold until the same arrives under the discharge opening in the base-plate. Here a temporary arrest of the movement occurs, during which the clay is fed and packed into the mold; the plunger retracted; a new mold is fed in front of the same, and in the subsequent advance of the plunger the first mold is pushed forward and the second mold takes its place to receive its quantity of clay. The advance of the first mold under the knife serves to carefully smooth 0E all the surplus of clay, which drops down through the ribs 9 on thetable, and hence does not impede the progress of the mold through the machine. The springplate 14 may be regulated to smooth the contents of the mold, and also to lend a certain amount of resistance to the ad- Vance of the mold. As the mold emerges from the rear end of the machine it is received by another attendant and its contents are loosened' by a knocking of the mold agalnst one of the spring knocker-plates at the sides of the machine, after which the brick 1s ready for drying.

ing brick may'be' carried on as fast as the pug-mill may be turned and molds fed Into the machine and removed therefrom. It Will furthermore be seen that the retraction of the plunger is occasioned by the lever becoming uninfluenced by the cam which passes be yond the lever and the action of the welght in withdrawing the same.

From the foregoing description in'connec tion with the-accompanying drawings'it will be seen that I have provided a-maohine of cheap and simple construction adapted to work and positively feed the clay from the mill into the molds, filling the same accurately, smoothing them off, and delivering them at the rear end of the machine, and-that the mechanism for stirring and feeding the clay also serves to operate the plunger or moldfeed.

Having described my invention, what I claim is- It will bese en that the operation for mak- 1. In abrick-machine, the combination with a base having an opening, the upper edges of which are beveled, a cylinder arranged over the opening, a feed-shaft mounted in the cylinder, means for operating the shaft, a knife arranged at the front edge of the opening and having its beveled side forming a continuation of the edge of the opening, and a spring plate carried by the base in rear of the knife and serving the double function of furnishing a slight resistance to the advance of the mold and smoothing off the contents of the same, of a reciprocating plunger arranged under the knife, and means for operating said plunger, substantially as specified.

2. In abrick-machine,the combination with a base having an opening, the edges of which are beveled, a knife arranged adjacent to the edge of the opening and having its edge forming a continuation thereof, a pug-mill or cylinder surmounting the base over the opening, a feed-shaft arranged in the cylinder, and means for operating the same, of a reciprocating plunger arranged under the base, a fiat spring arranged under the base in rear of the knife, and a regulating-screw passing through the base and bearing upon the free-end of said spring, substantially as specified.

3. In a brick-machine, the combination with the opposite sills, the base-plate arranged thereon, an opening formed in the sills, a discharge-opening formed in the base-plate in rear of said opening in the sills, and annularwallsurroundingtheopeningof thebase-plate,

an extension formed at the rear side of the base-plate and provided with a slot, a roller loosely mounted in the extension, a table arranged under thebase-plate, a plunger mounted upon the table and having a slotted rear end, of a cylinder mounted in the annular Wall and bolted thereto, a feedshaft arranged in the cylinder, a yoke having a bearing arranged upon the cylinder and receiving the feed-shaft, means for rotating said shaft, a cam carried by the shaft, a lever pivoted at one side of the cylinder and operated upon by the cam, a pivot-pin connecting the lever at its lower end with the plunger, a rope, chain, or cord connected to the lever and depending over the pulley, and a weight secured to the lower end of the rope, substantially as specified.

4. In a machine of the class described, the base having its side sills provided with cleats or rests 5 and adjusting-screws 6, combined with the mold-receiving table 7 having the cross-cleats 8 which rest upon the adjustingscrews, the upper side of the table having a series of longitudinally-disposed anti-friction bars 9, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

JEFFERSON DAVIS PACE.

Witnesses:

W. G. Bonny, E. N. HENDOR. 

